diff --git a/include/villas/queue_signalled.h b/include/villas/queue_signalled.h
index 3b3c97717..4f9e012b4 100644
--- a/include/villas/queue_signalled.h
+++ b/include/villas/queue_signalled.h
@@ -34,9 +34,11 @@ enum queue_signalled_flags {
 	QUEUE_SIGNALLED_POLLING		= (2 << 0),
 #ifdef __linux__
 	QUEUE_SIGNALLED_EVENTFD		= (3 << 0),
+#elif defined(__APPLE__)
+	QUEUE_SIGNALLED_PIPE		= (3 << 0),
 #endif
 	QUEUE_SIGNALLED_MASK		= 0xf,
-	
+
 	/* Other flags */
 	QUEUE_SIGNALLED_PROCESS_SHARED	= (1 << 4)
 };
@@ -44,9 +46,9 @@ enum queue_signalled_flags {
 /** Wrapper around queue that uses POSIX CV's for signalling writes. */
 struct queue_signalled {
 	struct queue queue;		/**< Actual underlying queue. */
-	
+
 	enum queue_signalled_flags mode;
-	
+
 	union {
 		struct {
 			pthread_cond_t ready;		/**< Condition variable to signal writes to the queue. */
@@ -54,6 +56,8 @@ struct queue_signalled {
 		} pthread;
 #ifdef __linux__
 		int eventfd;
+#elif defined(__APPLE__)
+		int pipe[2];
 #endif
 	};
 };
diff --git a/lib/queue_signalled.c b/lib/queue_signalled.c
index 48357ff37..a37caa316 100644
--- a/lib/queue_signalled.c
+++ b/lib/queue_signalled.c
@@ -48,6 +48,11 @@ int queue_signalled_init(struct queue_signalled *qs, size_t size, struct memtype
 			qs->mode = QUEUE_SIGNALLED_PTHREAD;
 		else
 			qs->mode = QUEUE_SIGNALLED_EVENTFD;
+#elif defined(__APPLE__)
+		if (flags & QUEUE_SIGNALLED_PROCESS_SHARED)
+			qs->mode = QUEUE_SIGNALLED_PTHREAD;
+		else
+			qs->mode = QUEUE_SIGNALLED_PIPE;
 #else
 		qs->mode = QUEUE_SIGNALLED_PTHREAD;
 #endif
@@ -84,6 +89,12 @@ int queue_signalled_init(struct queue_signalled *qs, size_t size, struct memtype
 		if (qs->eventfd < 0)
 			return -2;
 	}
+#elif defined(__APPLE__)
+	else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+		ret = pipe(qs->pipe);
+		if (ret < 0)
+			return -2;
+	}
 #endif
 	else
 		return -1;
@@ -112,6 +123,12 @@ int queue_signalled_destroy(struct queue_signalled *qs)
 		if (ret)
 			return ret;
 	}
+#elif defined(__APPLE__)
+	else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+		ret = close(qs->pipe[0]) + close(qs->pipe[1]);
+		if (ret)
+			return ret;
+	}
 #endif
 	else
 		return -1;
@@ -143,6 +160,14 @@ int queue_signalled_push(struct queue_signalled *qs, void *ptr)
 		if (ret < 0)
 			return ret;
 	}
+#elif defined(__APPLE__)
+	else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+		int ret;
+		uint8_t incr = 1;
+		ret = write(qs->pipe[1], &incr, sizeof(incr));
+		if (ret < 0)
+			return ret;
+	}
 #endif
 	else
 		return -1;
@@ -174,6 +199,14 @@ int queue_signalled_push_many(struct queue_signalled *qs, void *ptr[], size_t cn
 		if (ret < 0)
 			return ret;
 	}
+#elif defined(__APPLE__)
+	else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+		int ret;
+		uint8_t incr = 1;
+		ret = write(qs->pipe[1], &incr, sizeof(incr));
+		if (ret < 0)
+			return ret;
+	}
 #endif
 	else
 		return -1;
@@ -208,6 +241,14 @@ int queue_signalled_pull(struct queue_signalled *qs, void **ptr)
 				if (ret < 0)
 					break;
 			}
+#elif defined(__APPLE__)
+			else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+				int ret;
+				uint8_t incr = 1;
+				ret = read(qs->pipe[0], &incr, sizeof(incr));
+				if (ret < 0)
+					break;
+			}
 #endif
 			else
 				break;
@@ -249,6 +290,14 @@ int queue_signalled_pull_many(struct queue_signalled *qs, void *ptr[], size_t cn
 				if (ret < 0)
 					break;
 			}
+#elif defined(__APPLE__)
+			else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+				int ret;
+				uint8_t incr = 1;
+				ret = read(qs->pipe[0], &incr, sizeof(incr));
+				if (ret < 0)
+					break;
+			}
 #endif
 			else
 				break;
@@ -288,6 +337,15 @@ int queue_signalled_close(struct queue_signalled *qs)
 		if (ret < 0)
 			return ret;
 	}
+#elif defined(__APPLE__)
+	else if (qs->mode == QUEUE_SIGNALLED_PIPE) {
+		int ret;
+		uint64_t incr = 1;
+
+		ret = write(qs->pipe[1], &incr, sizeof(incr));
+		if (ret < 0)
+			return ret;
+	}
 #endif
 	else
 		return -1;
@@ -301,6 +359,9 @@ int queue_signalled_fd(struct queue_signalled *qs)
 #ifdef __linux__
 		case QUEUE_SIGNALLED_EVENTFD:
 			return qs->eventfd;
+#elif defined(__APPLE__)
+		case QUEUE_SIGNALLED_PIPE:
+			return qs->pipe[0];
 #endif
 		default: { }
 	}